275 hamburgers were sold on Sunday.
Step-by-step explanation:
Let,
Hamburgers = x
Cheeseburgers = y
No. of sold burgers = 498
According to given statement;
x+y=498 Eqn 1
y=x-52 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
[tex]x+(x-52)=498\\x+x-52=498\\2x=498+52\\2x=550\\[/tex]
Dividing both sides by 2
[tex]\frac{2x}{2}=\frac{550}{2}\\x=275[/tex]
275 hamburgers were sold on Sunday.
Keywords: linear equations, substitution method
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